The formula for converting temperatures from kelvins K to degrees Fahrenheit F is
Find the inverse of this function, and find the equivalent temperature of -121° F in kelvins.

the 3rd option is right

step-by-step explanation:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

answer: this is not a question

step-by-step explanation: this is a answer

answer: 7

step-by-step explanation: